Ultramarine

#121789

About Ultramarine (#121789)

The hex color #121789, also known as Ultramarine, is a deep shade of blue located in the blue-violet region of the color spectrum. It is composed of 7.1% red, 9% green, and 53.7% blue. This particular shade of blue is often associated with feelings of calmness, serenity, and stability. In color psychology, blue is known to represent trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. The term "ultramarine" originates from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was originally imported from Asia. Historically, it was made from ground lapis lazuli, making it a very expensive pigment, and was primarily used in paintings by Renaissance artists.

The color #121789, a deep ultramarine, presents several accessibility considerations for web development. Due to its low luminance, it requires careful selection of foreground colors to ensure sufficient contrast. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. When using #121789 as a background, pairing it with white or very light shades is essential to meet these standards. Conversely, using dark text on this background would likely fail accessibility checks. Careful consideration should also be given to users with visual impairments. Providing alternative styling options, such as a high-contrast mode, can significantly improve usability. It is also important to avoid using color as the sole means of conveying information; supplementing with text labels or icons is crucial for accessibility.

Shades

Digital Color Formats

RGB
18 23 137
RGB18 23 137
Red
Green
Blue
HSL
237.48 76.77% 30.39%
237.4876.7730.39HSL
Hue
Saturation
Lightness
HWB
237.48 7.06% 46.27%
237.487.0646.27HWB
Hue
Whiteness
Blackness
hex#121789
rgb18 23 137
hsl237.48 76.77% 30.39%
cmyk86.86% 83.21% 0% 46.27%
hwb237.48 7.06% 46.27%
xyz5.07 2.55 23.89
CMYK
86.86% 83.21% 0% 46.27%
86.8683.21046.27CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.07 2.55 23.89
5.072.5523.89XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025